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Viral MeningitisAka: Aseptic Meningitis

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  1. See Also
    1. Bacterial Meningitis
  2. Epidemiology
    1. Age: under 30 years (90%)
    2. Peaks in late summer
  3. Etiology
    1. Coxsackie virus
    2. Echovirus
  4. Symptoms
    1. Flu-like Prodrome
    2. Intense Onset of symptoms
      1. Headache
      2. Malaise
      3. Nausea
      4. Vomiting
      5. Photophobia
      6. Stupor (rarely)
      7. Neck stiffness
  5. Signs
    1. Fever (maximum 38-40 degrees Celsius)
    2. Meningeal Irritation
      1. Nuchal Rigidity
      2. Spinal Rigidity
      3. Kernig's Sign
      4. Brudzinski's Sign
    3. Rash (Coxsackie or Echovirus)
    4. Herpangina (Coxsackie Virus)
      1. Painful Vesicles at posterior third of oropharynx
  6. Labs: Cerebrospinal Fluid (CSF)
    1. CSF White Blood Cells: 10-100 (75% Lymphs)
    2. CSF Protein Normal
    3. CSF Glucose Normal
      1. May be reduced in Mumps and HSV
    4. CSF Culture Negative
  7. Course
    1. Fever resolves in 3-5 days
    2. CSF Leukocytes increased for weeks
  8. Management
    1. Symptomatic Therapy

Aseptic Meningitis (C0025290)

Definition (MSH)A syndrome characterized by headache, neck stiffness, low grade fever, and CSF lymphocytic pleocytosis in the absence of an acute bacterial pathogen. Viral meningitis is the most frequent cause although MYCOPLASMA INFECTIONS; RICKETTSIA INFECTIONS; diagnostic or therapeutic procedures; NEOPLASTIC PROCESSES; septic perimeningeal foci; and other conditions may result in this syndrome. (From Adams et al., Principles of Neurology, 6th ed, p745)
ConceptsDisease or Syndrome (T047)
MSHD008582
EnglishAcute aseptic meningitis, Aseptic Meningitis
Spanishmeningitis aseptica
Parent ConceptsMeningitis (C0025289), Viral meningitis (C0025297)
SourcesCOSTAR, DXP, MSH, MTH, NDFRT, QMR, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)


Viral meningitis (C0025297)

Definition (MSH)Viral infections of the leptomeninges and subarachnoid space. TOGAVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; RUBELLA; BUNYAVIRIDAE INFECTIONS; ORBIVIRUS infections; PICORNAVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RHABDOVIRIDAE INFECTIONS; ARENAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; JC VIRUS infections; and RETROVIRIDAE INFECTIONS may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, PHOTOPHOBIA, and signs of meningeal irritation. (From Joynt, Clinical Neurology, 1996, Ch26, pp1-3)
Definition (CSP)viral infections of the leptomeninges and subarachnoid space.
ConceptsDisease or Syndrome (T047)
ICD9047.9, 047.9
MSHD008587
EnglishAbacterial meningitis, Unspecified viral meningitis, Viral Meningitides, Viral Meningitis
Spanishmeningitis abacteriana, meningitis viral, meningitis virosica
Parent ConceptsVirus Diseases (C0042769), Infective meningitis (C0729584), Enterovirus meningitis (C0276430), Meningitis (C0025289), Central Nervous System Viral Diseases (C0348165), Viral meningitis (C0025297), Duplicate concept (C1274013)
SourcesCOSTAR, CSP, ICD9CM, MSH, MTH, MTHICD9, NDFRT, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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